Doctor insights on:
Does Lh Surge Drop After Ovulation
What is the probability that after getting a positive home ovulation test/lh surge that someone not ovulate?
Good question: There is some variability in9 the accuracy of the available otc ovulation prediction kits. If it's working, then the ovulation should occur for the overwhelming majority (>95%) of patients who experience the lh surge. You can have your doctor order a day 21 Progesterone level, and that will confirm ovulation (or prove it didn't occur), to help you be sure. ...Read more
Does the LH surge remain elevated through ovulation or does it go back to normal and then the egg drops?
LH peak: LH rises, peaks, and declines within a 24 hour period, with variations, though, among women. During this time period the egg bursts through the surface of the ovary and is swept up by the fimbria of the fallopian tube. ...Read more
Does an OPK shows a positive LH surge even during ovulation? If not, how much time before ovulation LH drops.
When your LH surge drops is that because you have now ovulated or does it drop again after your surge before ovulation occurs?
Yes: No one who knows exactly how long lh surge last. It definitely lasts at least 36 hours. In most women. .We know from in vitro fertilization ovulation occurs somewhere between 36 to 48 hours after the lh surge. It is best to have relations with your partner the day of your lh surge and the next day. We know that it is best if sperm are there before ovulation. ...Read more
Does the LH surge (monitored on opk) drop before, during or after you ovulate? My OPK tested positive yesterday but negative today- have i ovulated?
LH AND fertility:
Clearblue offers a range of ovulation test and fertility products, all of which monitor luteinizing hormone (LH) in urine to identify the time of peak fertility. The Clearblue Fertility Monitor and Clearblue Advanced Digital Ovulation Test also measure another key hormone, estrogen (estrone-3-glucuronide) to identify the period of high fertility that occurs prior to the LH surge. Monitoring these two hormones helps women identify the fertile days of their cycle enabling them to time intercourse to the days when conception is most likely
There are only a few days per cycle when a woman is fertile and can conceive. Evidence shows that this time of high fertility usually spans 6 days, starting approximately 5 days prior to ovulation and ending on the day of ovulation itself.1 The 6-day fertile period is affected by:
The lifespan of the egg, which is up to 24 hours after ovulation
The lifespan of sperm which is more variable. The median is 1.5 days, but sperm can survive up to 5 days in the sperm supportive mucus found in the fertile days of the cycle. Sperm survival is therefore dependent on the type and quantity of the mucus within the cervix, and the quality of the sperm itself.
The two most fertile days of this 6-day window are known as peak fertility days. These peak fertile days are the day prior to ovulation and the day that ovulation takes place.2
Studies show that a surge in LH levels occurs 24-36 hours prior to ovulation,2 and that this LH surge is an accurate and reliable marker of impending ovulation.3-7 The urinary LH surge pinpoints the two peak fertile days of a woman's cycle, with intercourse on these days being shown to be associated with the highest likelihood of conception. ...Read more
What are the chances i ovulated butpredictor test that never tested positive just missed the LH surge?
What happens to LH surge during ovulation? Would the LH detector still give a positive read if u are ovulating?
Yes it could: An lh surge is triggered when estrogen production from a growing follicle reaches a certain level. Some lh surges go up and down in 1 day. Others can be positive for 3-4 days. Ovulation usually occurs 24-36 hours after the peak so it is possible that the lh surge could still be positive during or after ovulation. Ovulation is triggered by the lh surge but the lh surge is not changed by ovulation. ...Read more
Once you get a neg OPK for LH surge following a positive does that mean ovulation has finished.How long can you see positive OPK after ov?
OPK: An OPK is a test that measures luteinizing hormone. Just prior to ovulation, women experience a short surge where the lh levels rise. The OPK will help you pinpoint this surge and help you predict when you will ovulate. It rise the day before ovulation and does not stay high very long. ...Read more
28-30 day cycle. Took clearblue digital ovulation test (not advanced), & had LH surge detected on day 8 and 11. Why multiple days? & so early?
Variable: Ovulation tests must be done daily at the sam time and with making sure that you have the same urine concentration. A more concentrated urine will give you false positive ovulation test. so, please repeat it again daily till Day 16 or till it is consistently positive. In a 28 to 30 day cycle, you are most likely to ovulate Day 14 to 16. Please start testing only from Day 12 of your cycle next time ...Read more
I have had a positive LH surge from ovulation tests for 5 days. Is this normal? If not, what could the reason be? Cycle are typically 50 days.
I have a CD27, I normally get a LH surge on cd11@11a;however, I took another ovulation test and it was positive today at 11:00a cd14 I'm confused?
Not to worry!: No woman's cycles are 100% identical every month & tthe hormones regulating cycles are VERY complex. A small variation in the rate of maturation of the ovarian follicle can lead to a variation in the timing of the LH surge which can last from 24 to 48 hours. What you observed is a perfectly normal, modest hormonal variation. It's not until menopause that the cyclic variation goes away. ...Read more
Is a 3 day LH surge normal. I get this every month and when I have done tests to check whether I have ovulated. The test come back I have ovulated ?
1st LH surge day 15, negative for LH day 16. Does that mean i'm ovulating on day 16? I typically get two days of LH but this time only one? Fertility?
Day 16 or 17: The lh surge goes up and down over about 24 hours. When you get two days of positive lh tests you are probably catching lh rising the first day and going down on the next day. It can be 24 to 36 hours from detecting the lh surge to ovulating, so you could ovulate on day 16 or up to day 17. Hope this helps. As you are doing iui, ultrasound monitoring of your cycle can help with timing IUI as well. ...Read more
Using ovulation test strips to pinpoint my LH surge. Positive on 9/21 but my calendar says i ovulated on 9/19 i tested that day an got negative, help?
Mix n' match: Don't be surprised: you are mixing testing methods, none of which is (are ) exact. If you checked cervical mucus you might get another answer, still. Generally the OPK is the most accurate test you can do at home; more reliable than the calendar method, and ultrasound is more reliable than opk. ...Read more
Wht hapens to LH surge aftr ovulation. My LH surge was from sun nght 2 tues eve, but tues nght there was no indication on okit. Does dat mean i ovolut?
I have a question about detection of ovulation with a opk? I started using the clear blue digital ovulation test 20pk day 6 of my december cycle to try and catch my LH surge. I tested twice everyday, once at 1p the other about 10p. The first time i detect
I : I agree with the rep that the 1st day that you detected a surge most likely represents your true lh surge. The cramps that you described are often experienced by women that ovulate but their timing is less specifically related to the exact time of ovulation. Implantation is usually not associated with discomfort. Cramping pain lasting more than 2 days is less likely to be related to ovulation but may be common when ovulation inducing drugs are used or patients have other underlying condition such as endometriosis. Keep in mind that there is only about a 20% chance of conception each cycle under optimal conditions. If you have proven past fertility and continue to ovulate you should have an excellent chance of conception within a few cycles. If you are not pregnant within 3 or 4 months or over 35, other testing should be considered. ...Read more
Unknown, but low: The complete answer: it is uncommon to not ovulate after detecting a TRUE LH surge. This was called a luteininzed unruptured follicle (LUF) and we are not certain how often it happens, most estimates are around 10%. Here's the trick though: many women get false LH readings on OPK, so obviously you would NOT expect ovulation to follow these. Good wishes. ...Read more
It doesn't: I'm assuming you're using ovulation prediction kits. Once your surge happens it takes a period of time for the LH to go back down below a level where it goes below the test levels indicated to be positive. I addition if you are checking the LH very often you will pick up a positive a bit before the actual surge. I tell my patients once you have a positive test to stop & save for the next cycle ...Read more
Ovulation is: Stimulated by the spike in fsh and lh, usually measured from the beginning, but it is a very rapid change in levels. ...Read more